Optimal Design of Ceramic Based Hip Implant Composites Using Hybrid AHP-MOORA Approach

Abstract

Designing excellent hip implant composite material with optimal physical, mechanical and wear properties is challenging. Improper hip implant composite design may result in a premature component and product failure. Therefore, a hybrid decision-making tool was proposed to select the optimal hip implant composite according to several criteria that are probably conflicting. In varying weight proportions, a series of hip implant composite materials containing different ceramics (magnesium oxide, zirconium oxide, chromium oxide, silicon nitride and aluminium oxide) were fabricated and evaluated for wear and physicomechanical properties. The density, void content, hardness, indentation depth, elastic modulus, compressive strength, wear, and fracture toughness values were used to rank the hip implant composites. It was found that the density and void content of the biocomposites remain in the range of 3.920–4.307 g/cm3 and 0.0021–0.0089%, respectively. The composite without zirconium oxide exhibits the lowest density (3.920 g/cm3), while the void content remains lowest for the composite having no chromium oxide content. The highest values of hardness (28.81 GPa), elastic modulus (291 GPa) and fracture toughness (11.97 MPa.m1/2) with the lowest wear (0.0071 mm3/million cycles) were exhibited by the composites having 83 wt.% of aluminium oxide and 10 wt.% of zirconium oxide. The experimental results are compositional dependent and without any visible trend. As a result, selecting the best composites among a group of composite alternatives becomes challenging. Therefore, a hybrid AHP-MOORA based multi-criteria decision-making approach was adopted to choose the best composite alternative. The AHP (analytic hierarchy process) was used to calculate the criteria weight, and MOORA (multiple objective optimisation on the basis of ratio analysis) was used to rank the composites. The outcomes revealed that the hip implant composite with 83 wt.% aluminium oxide, 10 wt.% zirconium oxide, 5 wt.% silicon nitride, 3 wt.% magnesium oxide, and 1.5 wt.% chromium oxide had the best qualities. Finally, sensitivity analysis was conducted to determine the ranking’s robustness and stability concerning the criterion weight.

Selection of materials with entropy-topsis by considering technological properties of impregnated wood

“…In this investigation, it was observed that ranking of impregnation materials are in descending order as A-5 > Furthermore, the ranking results of the proposed entropy-TOPSIS methodology were compared to those of other common MCDM methodologies to validate its applicability. The ranking results obtained by the entropy-TOPSIS approach were compared with VIKOR (Visekriterijumska optimizacija kompromisno resenjemeaning) [47] , ARAS (Additive ratio assessment) [48] , GRA (Grey relation analysis) [49] , PROMETHEE II (Preference ranking organization method for enrichment evaluation II) [50] , MOORA (Multiple objective optimization on the basis of ratio analysis) [51] , COPRAS (Complex proportional assessment) [52] approaches and ranking results are given in Table 8 and Figure 4. Table 8 demonstrates that the alternative A-5 highest of all other alternatives and the alternative A-1 lowest when solved with all the methods.…”

Dental Material Selection for the Additive Manufacturing of Removable Complete Dentures (RCD)

“…The key difference between these methods lies in the algorithms bringing different-scale, often qualitative, data into a single normalized space and the subsequent choice of a metric inside it. Examples of MCDM can be found both in tribology [ 36 ] and medicine [ 37 , 38 , 39 ], as well as in other areas [ 40 , 41 ]. Recently, MCDM, based on interval estimates, has been developed.…”

Comparative Sensitivity Analysis of Some Fuzzy AHP Methods

“…Despite the criticism, Saaty's original proposed Consistency Index (CI) is actively used in significant decision-making processes, as follows: quantum computing challenges in the software industry [37]; analysis of project benefits of solar energy collection and irrigation systems (supported by funds for the Sichuan Vanadium and Titanium Materials Engineering Technology Research Centre Project) [38]; for contractor assessment during project life cycles (supported by Al-Mansour Contracting Company for Contracts, the Ministry of Housing and Construction, Iraq, and the University of Baghdad) [39]; for access point selection in hybrid LiFi/WiFi networks [40]; for reinforcing doctor-patient communication (supported by the Ministry of Education of the Republic of Korea and the National Research Foundation of Korea) [41]; to evaluate sustainable healthcare systems [42]; for risk assessment of oil and gas pipelines hot work [43]; the evaluation of the emergency management capacity of resilient communities (funded by the Humanities and Social Sciences Project of the Ministry of Education) [44]; for the selection of the type of concrete and the method of its maintenance in dry, hot climate conditions (supported by the Poznan University of Technology-Polish Academy of Science) [45]; in changing the damming level of a small hydropower plant (co-financed within the framework of the Ministry of Science and Higher Education programme as "Regional Initiative Excellence") [46]; for the optimal design of ceramic-based hip implant composites [47]. In a review article covering usage from 1977 to 2022, the highest percentage of publications came from China, India, and Iran.…”